Explosion-motor.



No.886,539. PATENTED MAY 5, 1908. l

A. PEUGEOTK, T. HUBER & H. DE LOSTALOT.

EXPLOSION MOTOR.

APPLICATION FILED Mus. 1907.

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v PATENTED MAY 5, 1908. A. PEUGEOT, T. HUBER & H, DE LOSTALOT. EXPLOSIONMOTOR.

APPLICATION FILED MAY 6. 1907.

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ARMAND PEUGEOTONY HUBER, AND HENRI DE LOSTALOT, 0F BILLANCOURT, FRANCE.

Application filed May G, 1907. Serial No.v 372,259.

Specification of Letters Patent.

EXPLOSION-IVIOTOR.'

Patented May 5, 190s.A

To all whom it may concern:

Be it known that we, ARMAND PEUGET,

tional lightness is secured to the motor, to-

gether with increased action.

The improved motor is preferably provided with a suction valve ofparticular construction, wliicli allows the weight of the whole to belessened still further in comparison with the weight of known motors.

On the annexed drawing Figure 1 is a longitudinal section of the motor,through the axis of the cylinder. Fig. 2 is a view from below of thecylinder showing the arrangement of the sliding shutter. Fig. 3 is asection and Figs. 4 and 5 elevations with parts broken away showing theconstruction of suction valve.

In the improved motor, the hollow piston A as well as the case A whichlengthens the same are constructed of aluminium or of a light aluminuimalloy and the bottom of the cylinder at the side of the connecting rodB, instead of o ening as usual into a crank inclosing cham er is closedimmediately above the point where the piston stops at its lowestposition by a sliding shutter which assures the tight closing of thecylinder while allowing the oscillating connecting rod B to work freely.

i This sliding shutter consists of a thin, sliding plate f of aconvenient length, carrying centrally a socket joint g h, in order toallow the piston rod to pass through at the same time forming a jointround the same, this plate being moved by the lateral reciprocatingmovement of the connecting rod and sliding on the smooth upper surfaceof the cylinder bottom said bottom being attached and screwed on at l).Mortised grooves provided in the sides of the said cylinder form guides,for the sliding plate in sucha manner as to close constantly in a tightmanner the longitudinal opening c provided in thebottom of the cylinder.By this means the oscillating connecting rod can reciprocate freely.

The action is as follows: When the piston A A arrives at the bottom ofits stroke after an explosion osition of Fig. 1) the burned gases escapea ter expansion through the orifice y' pierced in the side of thecylinder C; at the Vsame time the fresh explosive gases compressedbetween the piston and the bottom with sliding shutter escape by theconduit lc, follow round the piston and partition guide Z and accumulatetowards the outletI operating to drive out the burned gases. Continuingits course, the piston, in'rising, shuts ofi` the two escape andadmission orifices y' and le provided in the cylinder and compressestowards the outlet the fresh gases, which will explode near the deadpoint ,the other face of the pistonl acting as a suction pump draws inthrough the pipe and admission valve either petrol, gas or othercombustible 1products together with air, the air and gas eing eitherpreviously mixed in a carbureter, or separate. The admission valveclosed the pipe at the moment of the subsequent comression necessary forthe transport of the resh gases towards the outlet.

In its descent the piston receives the mo tive force from the explosionand compresses by its other face as has been above described.

By the combined use of a piston of alumin4 l` ium or alloy of aluminiumand of the sliding shutter of the cylinder, the weight of the motor isconsiderably lessened the aluminium weighing much less than the ordinarycasting and the crank chambers or an additional pump by which theaspiration is done being dispensed with. Also, the vibrations due to theinertia of the iston are considerably lessened. Besides t e above thefollowing im ortarit results are obtained.

uminium, even in a state of alloy, conducts heat much better than theordinary casting. The upper face of the piston in motors of two-strokecycle becomes greatly heated owing to the flow of escaping gases g inour invention this heat spreads very quickly in the chamber A- of theiston said piston acting as a large cooling p ate thereto this latewhich plunges in the fresh gases comin between the piston and the bottom.with siding shutter, gives itsheat to these gases and heats them beforetheir comfpression, by which means the -working an the power of themotor is improved.

The lightness and the efficient workingof the rmotor can be furtherincreased by the use of the admission valve represented in Fig. 1 and inFigs. 3, 4 and 5. This valve is formed of a reversed V late m, providedwith large openings n wh-icli) oscillation of very thin steel plates 0,flexible round their points of connection. These thin steel plates haveover the ordinary valves of explosion motors the advantage ofextraordinary lightness of weight (3 to 4 grams to a cylinder for amotor of 10 to 15 horse power); on account of this lightness of weightand their elasticity the improved valve acts'in perfect accordance withthe sucking of the motor, which sensibly increases the power of the sameespecially for rapid rotatlon of 1500 revolutions or more at which speedinertia of the effect.

Our improved valves with plates of a thickness of' a tenth and a half tothree tenths of millimeter, re-act very well against pressures of 8 to10 kilos, without permanent deformation. They have further the advantageof conducting the gases without serious power loss.

are closed or opened by the valve would have considerable Having nowdescribed our invention, what vwe claim as new and desire to secure byLetters Patent is:

An explosion motor of two-stroke cycle comprising in combination a clinder C, a widened portion formed at' the ower end of said cylinder, ano ening formed in the widened portion of t e cylinder, an admission oening 7c formed in the middle-part of the cy inder, a conduit connectingthe said opening, a third opening j formed in the cylinder for theescape of the gases, a sliding cover b f closing the cylinderimmediately above the point where the piston stops, a hollow piston A,an extension A formed on the piston adapted to be surrounded andconsequently cooled by the admission gases,

and an admission valve arranged just oppo site the o ening formed in thewidened porf tion of t e cylinder, substantially as described and forthe purpose set forth.

In testimony whereof we have signed our names to this speciiication inthe presence of two subscribing witnesses.

ARMAND PEUGEOT. TONY HUBER. HENRI DE LOSTALOT.

Witnesses: ANTOINE LAvDIo,

DEAN B. MAsoN.

